No thawing required, can cook from frozen. Chicken Raised with: No added hormones or steroids (Federal regulations prohibit the use of added hormones or steroids in chicken). Who knew frozen could taste so fresh? Tyson individually Frozen Chicken is frozen to lock in all of that fresh taste until you're ready to serve it up. It's chicken that we freeze for you, because freezing is the best preservative mother nature has to offer.